Z-Score Equivalents Table
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1Z-Score Equivalents Table
Conversion of Z-Scores to Standard Scores (Mean = 100; Standard Deviation = 15)
Standard
Standard
Z-Score
Score (SS)
Z-Score
Score (SS)
(M=0;
(M=100;
(M=0;
(M=100;
SD=1)
SD=15)
SD=1)
SD=15)
4.0
160
-0.6
91
3.9
158
-0.7
89
3.8
157
-0.8
88
3.7
155
--0.9
86
3.6
154
-1.0
85
3.5
152
-1.1
83
3.4
151
-1.2
82
3.3
149
-1.3
80
3.2
148
-1.4
79
3.1
146
-1.5
77
3.0
145
-1.6
76
2.9
143
-1.7
74
2.8
142
-1.8
73
2.7
140
-1.9
71
2.6
139
-2.0
70
2.5
137
-2.1
68
2.4
136
-2.2
67
2.3
134
-2.3
65
2.2
133
-2.4
64
2.1
131
-2.5
62
2.0
130
-2.6
61
1.9
128
-2.7
59
1.8
127
-2.8
58
1.7
125
-2.9
56
1.6
124
-3.0
55
1.5
122
-3.1
53
1.4
121
-3.2
52
1.3
119
-3.3
50
1.2
118
-3.4
49
1.1
116
-3.5
47
1.0
115
-3.6
46
0.9
113
-3.7
44
0.8
112
-3.8
43
0.7
110
-3.9
41
0.6
109
-4.0
40
0.5
107
0.4
106
0.3
104
0.2
103
0.1
101
0.0
100
-0.1
98
-0.2
97
-0.3
95
-0.4
94
-0.5
92
Directions:
Locate the Z-Score you want to convert in the left column. Read across to the right column to find the
corresponding Standard Score.
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